Side plate for steam-boilers.



Patented July I7, I900. E. J. MOORE.

SIDE PLATE FOB STEAM BOILERS.

(Application filed Sept. 21, 1898.) (No Model.)

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. Patented July 17, I900. E. J. MOORE.

SIDE PLATE FOR STEAM BOILERS.

(Application filed Sept. 21, 1898.)

(No Model.)

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SIDE PLATE FOR STEAM-BOILERS.

SPECIFICATION forming part of Letters Patent No. 654,070, dated July 17, 1900.

Application filed September 21,1898. r il 6 1 91- (Nolmodem To all whom, it may concern:

Be it known that I, EDWARD J. MOORE, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Side Plates for Steam-Boilers, of which the following is a specification.

The object of my invent-ion is to construct a non-conducting sectional casing fora steamboiler either of the marine or stationary type, so that it can be readily applied to or detached from the boiler, as fully described hereinafter.

In the accompanying drawings, Figure 1 is a side view of a steam-boiler, showing my improved casing in position, the inclosing plate being partly broken away. Fig. 2 is a View showing two plates coupled. Fig. 3 is a section on the line 3 3, Fig. 2. Fig. 4: is a section on the line 4 4, Fig. 2; and Figs. 5 and 6 are views of the blanks prior to bending to form one of the sections of the casing.

In many instances the use of bricks is objectionable in the construction of steam-boilers, and this is particularly the case in the building of marine boilers, and where the sheathing or casing is of metal considerable difficulty is met with owing to the fact that ordinary sheet-metal casings are difficult to keep cool. Furthermore, these casings are not removable in sections, so that in the event of a repair being necessary the boiler has to be dismantled. By my invention, however, I am enabled to remove any one of the sections and replace it readily. At the same time the sections are so constructed that they are practically non-conductive of heat.

Referring in the first instance to Figs. 5 and 6, A is a plate of any shape desired, according to the shape of the section to be made. This plate is notched at a to form flanges a, which are turned up at right angles, as shown in Figs. 3 and 4. Prior to being turned up, however, they are punched or drilled for the reception of the bolts and rivets, as indicated. In Fig. 6, B is another blank notched at b, so as to form flanges b, which are bent at right angles to the body of the plate, and this blank is of such a size that it will fit snugly within the flanges of the plate A, as indicated in Fig. 4. The flanges a and b are perforated in line for the reception of bolts and rivets, and through each alternate hole is secured a rivet which firmly attaches the two flanges together. The other holes in the flanges are for the bolts 0, by which the sections are coupled together, as shown in Fig. 2, so that on removing the nuts and bolts on the four sides of a section the section can be removed bod ily from the boiler, so that access can be had to the interior thereof.

I preferably slot the outer plate B at e, so that the non-conducting filling E may be inserted through the slots in the plate, and in case it is necessary to replenish the filling at any time it can be done by packing it through the slots when the sections are in position. In some instances, however, the slots may be dispensed with and the packing inserted when theplates are assembled.

On large sections I preferably space the plates by blocks f and pass rivets f through the blocks and plates, so as to hold the plates rigidly together.

The non-conductin material I refer to use is asbestos; but I do not wish to limit myself to this particular material.

While in Fig. 1 I have shown a particular ,type of boiler, for which Letters Patent were granted to me on July 26, 1898, No. 608,065, I may apply my invention to any boiler in which an inclosing casing is necessary. In this instance, as shown in Fig. 1, the lower portion of the boiler is made up of solid plates, while the upper portion is made up of a number of sections bolted together. Any one of these sections can be removed when necessary, and the sections are shaped to fit around the projecting portions of the boiler, as shown. When the sections are in place, I preferably cover them with a sheet-metal plate D. Thus I not only have a chamber of non-conducting material, but I also have an air-space beyond the non-conducting chamber. This construction is especially applicable for marine boilers where they are placed in close proximity to the coal-bunkers.

I preferably mount between each, of the sections strips 7; of asbestos, Fig. 2, so that whenthe sections are bolted together tight joints are formed between the several sections.

I claim as my invention 1. The combination in a steam-boiler, of a casing made up of a series of hollow sections containing non conducting material, each section being flanged, and an inclosing plate resting against the flanged portion of the sections forming an air-space, substantially as described.

2. The combination in a sectional casing for steam-boilers, of a series of compositel slabs forming said casing, each of said slabs comprising a deepflanged plate and a shall0w-flanged plate, said shallow-flanged plate resting within the deep-flanged plate and forming with the .latter a chamber for nonconducting material, the flanges of the two plates being secured together, substantially as described.

3. The combination in a slab forming a portion of a sectional casing for steam-boilers, of the flanged plate A, and a flanged plate B resting within the flanges of the plate A, the flanges of each plate having a series of holes adapted to register with each other, the plates being secured together by rivets passing through alternate holes in the flanges of the plates, and the slabs or sections formed by said plates being secured together by bolts passing through the series of holes between 

